Repair device for pneumatic tires.



No. 866,539. PATENTED SEPT. 17, 1907.

' P. c. IRAVER. Y REPAIR DEVICE FOR PNEUMATIC TIRES.

.APPLIQATION FILED J'TILYZSA 1906.

UNITED STATES P'IENT OFFICE.

PHILIP C. TRAVER, OI I\'E\\' YORK, N. ASSIGNOR 'lO lllICHlAEL P. MCNAMARA, OF NEW YORK, N. Y.

REPAIR DEVICE FOR PNEUMATIC TIRES.

Specification of Letters Patent.

Patented Sept. 1'7, 1907.

Application filed m 26,1906. Serial imazmzs.

ful Improvements in Repair Devices for Pneumatic- Tires, of which the following is a specification.

This invention relates to repair devices for pneumatictires and directly to that class of such devices as are peculiarly applicable to that class of pneumatic tires known as double tube tires, comprising an inner air tube and an outer protecting case.

In the drawing accompanying this specification is illustrated one embodiment of my improvement and therein I Figure 1 is a perspective view of my improved tire repairer; Fig. 2 is a perspective view of a part of my device showing the protecting lining. Fig. 3 is a cross section of 2. double tube tire showing my improved device applied-thereto. Fig. 4 shows an alternate arrangement of one means for preventing theshiiting of the device when use. Fig. 5 shows a further adaptation of the arrangement of Fig. 1.

My device is intended for insertion between the outer and inner tubes of a double tube tire to protect the innertube'against possible rupture o1 injury-by contact with any hole or break in the outer tube or roughness Caused by wear or otherwise in the inner portion thereof. Said device is also efficient to relieve strain caused by the inflatedinner tube on worn-or weakened portions oi the outer case.

The present improvement comprises a body portionv or plate 5 pro-shaped to approximate conformity to the contour of the tube to which'it is to be applied, and having a flange 10 turned" back on the inner edge thereof for contact with the inner tube and said outwardly turned edges bite more or lessint'o the inner face of the outer tube thereby afiording additional holding means to prevent displacementof the device. Plate 5 is preferably formed integral, that is of one continuous piece of sheet metal or other suitable sheet material, such for instance as indurated fiber or wdven fabric. Flange 10 either I with or without the assistance of the outwardly turned edge is usually sufficient-t0 hold the device securely in place when in use but additional means as outwardly of sonicl uitable material and inserted in plate 5.

projecting teeth '7 maybe provided for engagen'ient with the inner face of the outer protecting (use 9 to assist in maintaining the repair device against shilling or displacement. Said teeth while of sullieient length in properly grip the inner portion of the outer case are not ofsutlicient length to perforate said case.

It plate 5 is made of metal, teeth 7 are preferably formed-integral therewith by punching and bending outward said teeth from thebody of the plate. It plate is composed of material unsuitable for the formation of teeth therefrom, said teeth may be made separately Ono embodiment of such alternate construction is illus' trated in Fig. 4 wherein 5 represents a section oi the plate, said plate being perforated by a pin or tooth ll having ahead 12 against the inner side ol plate 5 and a retaining washer 13 fitting tightly about said tooth 11 on the outer side of plate 5.

In some cases it is advantageous to supply a lining 6 (Fig. 2) titted to the inner face of my device. Said lining is preferably formed of some yielduble sheet material and is so disposed on th e face to which it is applied as to provide a lip 60 overhanging edge 50 of plate 5 around a portion of its periphery thereby forming a yieldable edge for said plate 5. Said lining serves to further protect the inner tube against. abrasion by edge 50 of plate 5. Said lining (i may be secured by any convenient means to.the inner face of plate 5. In case plate 5 is provided with perforating teeth 11, said teeth may be also employed to retain lining G in place on plate 5, as shown in 'Fig; 5 wherein said pins pass through plate 5 and lining 6 and by means of. head 12 and washer 13 clamp'said members 5 and 6 securely together.

My improved repair device is applied as follows. Inner tube 8, being deflated, one side as 14 of protecting case 9 is withdrawn from wheel rim 15, and the repair device inserted between that portion of case 9 in whicl the break is located, and tube 8. Flange 10 is fitted to heel l4 ot' case 9 and said case replaced in rim 15. I nner tube 8 is then inflated whereby said tube pressed firmly against the repair device and saidrepair device forced firmly against the inner surface of case 9, flange 10 being thereby gripped between heel 14 of said ease and the inner face of rim 15, edges 50 of said device sinking more or less into said inner surface of case 9 and aiding flange 10 to hold the repair device in place. 'If the device is supplied with teeth as 7, said teeth will be embedded securely in the inner face of case 9 thereby affording added means for preventing the shifting-of the device.

If plate 5 is formed of metal or other relatively rigid material my repair device may be made invarious sizes and shapes to conform to various contours ot' tires respectively, and said device may also be made in various lengths.

I laimz 1. A protecting device for the inner tube of afpnenmatic tire comprising a relatively rigid body membethav'r ing a flange'on that edge thereof contiguous "to the-heel of the tire casing fgrengagement' with said heel and having the other edges 0t 5116 body member curved outwardly for engagement with the inside of said tire casing and for protecting the inner tube against abrasion by said edges.

2.A protecting device for the inner tube of a pnew matic tire comprising a relatively rigid body member extending over and beyond the middleline of the inner tube to hold said tube under tension and having on one edge thereof a flange adapted to be gripped between the heel ofthe tire casing and the wheel rim.

3. A repair device for pneumatic tires comprising a relatively rigid body member extending over and beyond the middle line of the inner tube to hold'aaid inner tube'QO under tension, said body member having ayieldable edge matic tirecomprising a relatively rigid integral body mem- 25 :ber having n flange on one edge thereof adapted to be .g ripped between the heel of the tire casingand the wheel "rim, said body member being provided with teeth for engagernent-with the'inner face of the tire casing.

Signed this 23rd day of July, 1906 in the presenceof 30 two subscribing witnessesv I PHILIP c. TRAVER.

Witnesses i .\i. 1'. MCNAMARA, PETE Sonnet-n: 

